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52 lines
1.9 KiB
JavaScript
52 lines
1.9 KiB
JavaScript
// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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this.EXPORTED_SYMBOLS = [ "URLBarZoom" ];
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Components.utils.import("resource://gre/modules/Services.jsm");
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var URLBarZoom = {
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init(aWindow) {
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// Register ourselves with the service so we know when the zoom prefs change.
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Services.obs.addObserver(updateZoomButton, "browser-fullZoom:zoomChange", false);
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Services.obs.addObserver(updateZoomButton, "browser-fullZoom:zoomReset", false);
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Services.obs.addObserver(updateZoomButton, "browser-fullZoom:location-change", false);
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},
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}
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function updateZoomButton(aSubject, aTopic) {
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let win = aSubject.ownerGlobal;
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let customizableZoomControls = win.document.getElementById("zoom-controls");
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let zoomResetButton = win.document.getElementById("urlbar-zoom-button");
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let zoomFactor = Math.round(win.ZoomManager.zoom * 100);
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// Ensure that zoom controls haven't already been added to browser in Customize Mode
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if (customizableZoomControls &&
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customizableZoomControls.getAttribute("cui-areatype") == "toolbar") {
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zoomResetButton.hidden = true;
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return;
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}
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if (zoomFactor != 100) {
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// Check if zoom button is visible and update label if it is
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if (zoomResetButton.hidden) {
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zoomResetButton.hidden = false;
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}
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// Only allow pulse animation for zoom changes, not tab switching
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if (aTopic != "browser-fullZoom:location-change") {
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zoomResetButton.setAttribute("animate", "true");
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} else {
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zoomResetButton.removeAttribute("animate");
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}
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zoomResetButton.setAttribute("label",
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win.gNavigatorBundle.getFormattedString("urlbar-zoom-button.label", [zoomFactor]));
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// Hide button if zoom is at 100%
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} else {
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zoomResetButton.hidden = true;
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}
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}
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